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This situation report released by the National Emergency Management Office (NEMO) is to inform operational partners on current situation of the secondary effects of the Hunga Tonga Hunga Ha’apai (HTHH) Volcanic eruption. This Situation report (Sitrep) covers the period stated above. Frequency of reports will depend on availability of new information and evolving operation.

This map illustrates impact of the Hunga Tonga-hunga Ha'apai volcanic eruption and subsequent tsunami in the Atata island (Kolovao district, Tonga) and the related damage assessment as detected from a Pleiades image acquired on 18 January 2022.

 

Source : :United Nations Satellite Centre(UNOSAT)
 

This map illustrates effects of the Hunga Tonga-hunga Ha'apai volcanic eruption in Nomuka island (Mu'omu'a district, Tonga) and damage assessment as detected from a Pleiades image acquired on 17 January 2022.

250 structures identified. 104 structures were analyzed in the cloud-free area and 41 structures were identified as damaged and almost all the structures were covered with ash. This is a preliminary analysis and has not yet been validated in the field

The report describes Preliminary Satellite-Derived Damage Assessment Status for the Kingdom of Tonga - Affected structures and affected facilities observed in all island after tsunami triggered by volcanic eruption.

 

Source : UNOSTAT

This map illustrates effects of the Hunga-Tonga Hunga- Ha'apai volcanic eruption in Mango island and damage assessments as detected from a Kompsat-3 image acquired o 18 January 2022. UNOSTAT identified 26 structures as damaged and/or destroyed and 1 structure as potentially damaged. The entire island appears to be covered with ashes. This is a preliminary analysis and has not yet been validated in the field

This map illustrates the impact of the Hunga Tonga-hunga Ha'apai volcanic eruption and the subsequent tsunami in Fonoifua island located at 110 km NE of Nuku'alofa and also the building damage assessment as detected from a Pleaides image acquired on 20 January 2022.

Preliminary Satellite-Derived Damage Assessment as of 21st January 2022 for 'Eua Island.

Status:

This map identifies  reefs that falls within each of the 3 Impact Zones 

This map illustrates the impact of the Hunga Tonga-hunga Ha'apai volcanic eruption and the subsequent tsunami in 'Ohonoua town ('Eua Prope district, Tonga) and damage assessment as detected from Pleiades images acquired on 20 January 2022 at 11:20 local time and 21 January 2022 at 11:13 local time.

The map was produced by JRC.. Joint Research Centre of the EU.  It provided a situation overview  as  at 18 & 19 Jan, 2022 Sources provided by UN OCHA.  Sattelite mapping activation sources: Corpernicus, UNOSAT- UNITR, International Charter Activation 744.

This document also provide some infomation on the  types of assistance that have been provided to the people as well as findings from the assessment. 

The maps highlights areas with significant shift in the shoreline  by overlaying shoreline data  from Nov 2021 and January 2022

Concerns are raised over potential negative impacts of desalination activity on the environment.

Resource and Guidance Manual for Environmental Impact Assessments

Suggested Citation :

UNEP (2008) Desalination Resource and Guidance Manual for Environmental Impact Assessments. United Nations Environment Programme,   Regional Office for West Asia, Manama, and World Health Organization,   Regional Office for the Eastern Mediterranean, Cairo

This review was in preparation for Tonga's 4th national report to the CBD (Convention on Biological Diversity)

Official DKAN data portal user manual.

User guide on getting started with the Inform Data Portal

The Integrated Water and Coastal Management Plan for Vava'u acrhipelago in the Kingdom of Tonga has involved consultations with multi-level and multi-discipline stakeholder including local, provincial and national institutions, civil societies, private institutions and communities.
The Integrated Water and Coastal Management (IWCM) project was initiated in 2013 as a continuation of the very successful Integrated Water Resource Management Project in Vava'u from 2010-2012.

The deliverable focuses on a categorized listing of key issues and available information plus a concise description of the major characteristics of the Tongatapu coast (see Appendix B). The evidence to support the recommendations presented in this report has been gathered from a literature review, interviews with key stakeholders of Tongan government agencies and consideration of existing institutional practices of coastal management planning from the international arena (see Deliverable 2).

Rising oceans, changing lives: Final report is the overview report in a series of technical reports that have been
written for the project on Lifuka Island. Accordingly the section titles in the final report correspond with the
names of the respective technical reports.

This was an integrated effort by all concerned with the coastline in Tonga.

Integrated Coastal management applied conscious management process that acknowledge the interrelationships among most coastal and ocean uses and the environment that potentially affected.